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An energy formula for fully nonlinear degenerate parabolic equations in one spatial dimension

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Author(s):
Lappicy, Phillipo ; Beatriz, Ester
Total Authors: 2
Document type: Journal article
Source: MATHEMATISCHE ANNALEN; v. 389, n. 4, p. 23-pg., 2023-11-05.
Abstract

Energy (or Lyapunov) functions are used to prove stability of equilibria, or to indicate a gradient-like structure of a dynamical system. Matano constructed a Lyapunov function for quasilinear non-degenerate parabolic equations. We modify Matano's method to construct an energy formula for fully nonlinear degenerate parabolic equations. We provide several examples of formulae, and in particular, a new energy candidate for the porous medium equation. (AU)

FAPESP's process: 23/07941-7 - Global attractors in Horava-Lifshitz cosmologies.
Grantee:Ester Beatriz de Souza dos Santos
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 17/07882-0 - Einstein constraints and differential equations on the sphere
Grantee:Phillipo Lappicy Lemos Gomes
Support Opportunities: Scholarships in Brazil - Post-Doctoral